"You're in such a bad state, you naughty boy!" and with that she spanks your ass, which was arching up trying to get a bit more pressure. Whack!
You cry out, and explain that it's still really tender, as she must know. And you are so disappointed, and so turned on, that you are beside yourself, and so terribly desperate for your orgasm.
You have never been on the edge for so long, certainly not in such a situation.